(x)x+2x=8

Simple and best practice solution for (x)x+2x=8 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for (x)x+2x=8 equation:


Simplifying
(x) * x + 2x = 8

Multiply x * x
x2 + 2x = 8

Reorder the terms:
2x + x2 = 8

Solving
2x + x2 = 8

Solving for variable 'x'.

Reorder the terms:
-8 + 2x + x2 = 8 + -8

Combine like terms: 8 + -8 = 0
-8 + 2x + x2 = 0

Factor a trinomial.
(-4 + -1x)(2 + -1x) = 0

Subproblem 1

Set the factor '(-4 + -1x)' equal to zero and attempt to solve: Simplifying -4 + -1x = 0 Solving -4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1x = 0 + 4 -1x = 0 + 4 Combine like terms: 0 + 4 = 4 -1x = 4 Divide each side by '-1'. x = -4 Simplifying x = -4

Subproblem 2

Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Solution

x = {-4, 2}

See similar equations:

| .40a-.75=.75a | | -6(1+3k)+3k=2(-3-6k) | | 3x^3+23x^2+14x=0 | | 3x+240=120 | | 2+3n-n=-7 | | -10x+3=-3x+12 | | 7x^2-55x-72=0 | | -5(x+3)+3=-12 | | 40=x+6+-28 | | 5(x+3)=2-4(2x+3) | | -7(v-1)=7v-49 | | -2(2s-5)-10=-2(6s+2)-3 | | 6(5x-3)=20 | | x+2x+3x-4x= | | 11x=6-50 | | (y-11)+(4z+2)=90 | | 4x-3(x-4)=48x | | 3+5(y-2)=6 | | 28-3x=4x | | -5=2(u-4)-5u | | 49c+7-4c=39c-26 | | 2c-c-6=4c-8 | | 4(t-6)+8t=4(3t+4)-8 | | 3n-15=-8(n+6) | | 3m+20=4-3(8-3m) | | 1=1/4(4a+4) | | 28-x/4=x/3 | | -4(-1+6k)=38-7k | | 4x^4-108x=4x(x^3-27) | | 8[3-7(-9x-4)]=504x+248 | | 2(2x+5)=8x+6-4x+4 | | 5x-22x+8=0 |

Equations solver categories